Site Disclaimer
The information, interactive calculators, and educational guides provided on JewishCalendarTools.com are intended strictly for educational, informational, and general community planning purposes. Please review the following important disclaimers regarding religious authority, astronomical calculations, and site operations.
1. Not a Rabbinic Authority
JewishCalendarTools.com is an independent digital resource. This website is not a rabbinic authority, Beth Din (rabbinical court), or halachic ruling body.
While our content and software algorithms are carefully researched and designed to accurately reflect established Jewish calendar principles, astronomical calculations, and accepted halachic rules:
* Automated calculation outputs from our software do not constitute a formal rabbinic ruling (psak halacha).
* Complex religious questions, mourning customs, delayed circumcision dates, or burial anniversary variations should be brought to a qualified Orthodox rabbi.
* Individual community standards and local rabbinic guidance always supersede generic automated calculations.
2. Location and Elevation Variations
Calculating exact Shabbat candle lighting and Havdalah times requires precise geographic coordinates, time zone definitions, atmospheric refraction parameters, and solar elevation data.
Users should be aware that:
* Terrain obstructions (such as surrounding mountains, tall urban buildings, or deep valley locations) can affect visual sunset in specific neighborhoods.
* Geographic elevation above sea level alters solar visibility and horizon lines.
* Regional rabbinic councils often establish official community calendars that account for local geographic factors and historic community customs.
Always compare our automated calculation times against official local synagogue or rabbinic council calendars.
3. No Guarantee of Absolute Accuracy
We strive for mathematical precision by employing recognized astronomical formulas (such as NOAA solar position algorithms) and standard Hebrew calendar rules. However, JewishCalendarTools.com provides all tools and content on an “as-is” basis and makes no guarantee of absolute accuracy or completeness for every geographic location across all historical or future calendar years.
We are not responsible for any scheduling errors, missed candle lighting times, or personal inconveniences resulting from reliance on site output.
4. Advertising and Editorial Independence
To support site operations and ensure our interactive tools remain accessible to the public, JewishCalendarTools.com may display non-intrusive advertisements or affiliate links in the future.
We maintain strict editorial and mathematical independence:
* Advertisers and commercial sponsors have no influence over our calculation algorithms, astronomical formulas, or educational guide content.
* The inclusion of any advertisement or external link does not constitute a rabbinic endorsement or recommendation of the advertised product, service, or organization.
5. Contact for Calculation Feedback
If you notice a potential discrepancy in date conversions or Shabbat times for your city, please let us know so our technical team can review the mathematical model:
- Email: feedback@staging.jewishcalendartools.com